The meselson and stahl experiment starts with e. coli containing labeled dna grown in media. which result did meselson and stahl observe by sedimentation equilibrium centrifugation to provide strong evidence for the semiconservative model of dna replication?

You have a solution that contains phospholipid vesicles in a test tube. these vesicles have phospholipid bilayers, but do not contain any membrane transporters. you add a number of different molecules to the solution, and wait a period of time for them to equilibrate. if you could measure the concentration of each molecule, for which of the following would you expect to measure equal concentrations inside and outside of the vesicles? assume for this question that the overall osmolarity inside and outside the vesicles is the same (that is, there is no appreciable diffusion of water across the membrane). (select two answers) an amino acid with a hydrophobic side-chain a small non-polar molecule a negatively charged ion a small polar molecule a small lipid hormone

The response is the basis for vaccination. primary secondary tertiary none of the above

Isolated volcanic peaks on the ocean floor are